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EP2803752B1 - Vorrichtung zur bildung eines amorphen films und verfahren zu dessen bildung - Google Patents

Vorrichtung zur bildung eines amorphen films und verfahren zu dessen bildung Download PDF

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Publication number
EP2803752B1
EP2803752B1 EP13735785.1A EP13735785A EP2803752B1 EP 2803752 B1 EP2803752 B1 EP 2803752B1 EP 13735785 A EP13735785 A EP 13735785A EP 2803752 B1 EP2803752 B1 EP 2803752B1
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EP
European Patent Office
Prior art keywords
flame
particulate material
series
mist
spraying ports
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP13735785.1A
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English (en)
French (fr)
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EP2803752A1 (de
EP2803752A4 (de
Inventor
Ryurou Kurahashi
Hiroshi Matsumoto
Junji Takehara
Yoshihisa FUKUTOME
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Usui Co Ltd
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Usui Co Ltd
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Publication date
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Publication of EP2803752A1 publication Critical patent/EP2803752A1/de
Publication of EP2803752A4 publication Critical patent/EP2803752A4/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/08—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
    • B05B7/1481—Spray pistols or apparatus for discharging particulate material
    • B05B7/1486—Spray pistols or apparatus for discharging particulate material for spraying particulate material in dry state
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/16—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed
    • B05B7/1606—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed the spraying of the material involving the use of an atomising fluid, e.g. air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/16—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed
    • B05B7/20—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed by flame or combustion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/16—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed
    • B05B7/20—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed by flame or combustion
    • B05B7/201—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed by flame or combustion downstream of the nozzle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/16—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed
    • B05B7/20—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed by flame or combustion
    • B05B7/201—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed by flame or combustion downstream of the nozzle
    • B05B7/205—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed by flame or combustion downstream of the nozzle the material to be sprayed being originally a particulate material
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/06—Metallic material
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/06—Metallic material
    • C23C4/08—Metallic material containing only metal elements
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • C23C4/129—Flame spraying

Definitions

  • the present invention relates to a device and a method for forming an amorphous (non-crystalline; including metallic glass) film on the surface of a substrate (base material) by spraying, more specifically to a large device for forming a large-area amorphous film and a method for forming the film utilizing the device.
  • the devices disclosed in Patent Literature 1 to 6 below are means for forming a thermal spray film on the surface of a substrate.
  • at least the devices disclosed in Patent Literature 1 to 5 are capable of forming, by thermal spraying, an amorphous film on the surface of the substrate.
  • the device disclosed in Patent Literature 1 is outlined in Fig. 11 , wherein:
  • the conventional device for forming an amorphous film shown in Fig. 11 , has following actions and effects:
  • the aforementioned conventional device is advantageous in forming a high quality amorphous film with various alloys including metallic glass, it may not efficiently form a large-area amorphous film. This is because, in general the width of a film formed by a flame of about 30 mm in diameter is no more than about 7 mm, therefore, in order to form a large-area film, the device has to repeatedly reciprocate in a neighborhood area on the substrate.
  • the object of the present invention is, based on these viewpoints, to provide a large device, etc. which is advantageous to form a large-area amorphous film.
  • a device for forming an amorphous film according to the invention which sprays a flame including a particulate material with a spraying machine toward a substrate, melts the particulate material with the flame, and cools the particulate material and the flame with a cooling gas before the particulate material and the flame reach the substrate, has the features defined in claim 1. That is:
  • the device has the following actions and effects.
  • the series of mist spraying ports is set at an angle such that a sprayed mist approaches the flame (that is, the mist sprayed from either sides crosses each other at a forward position), and the angle is able to be changed.
  • the angle of the series of mist spraying ports is thus determined such that the sprayed mist approaches the flame including the particulate material from both sides across the flame, the mist surely comes in contact with the flame, thereby enabling the aforementioned sufficient cooling.
  • the angle of the series of mist spraying ports is able to be changed, it is possible to adjust strength for cooling the flame.
  • the device of the invention is required to form amorphous films with various alloys on the substrate by changing chemical components of the particulate material. Some alloys need rapid quenching in particular and other alloys like metallic glass become non-crystalline by a comparatively low cooling rate.
  • the angle of the series of mist spraying port is able to be changed to adjust the cooling strength as described above, it is possible to form an amorphous film with the variety of alloys.
  • the change of the angle also enables to change (the lateral length of) the cross section of the flame, thereby controlling the thickness and properties (including amorphization rate) of an amorphous film to be formed.
  • a spray pressure of the inert gas and a spray pressure of the mist are able to be changed respectively.
  • an amorphous film with a variety of alloys is properly formed on the substrate.
  • a higher inert gas pressure and a lower mist pressure decrease the cooling strength
  • a lower inert gas pressure and a higher mist pressure increase cooling strength.
  • the angle of the mist is tilted close to the flame, the mist remarkably comes in contact with the flame, thereby increasing cooling strength for the flame.
  • the mist is a water mist; and when the mist is sprayed, a quantity of oxygen supplied to and sprayed from the series of flame spraying ports is 50 to 80 % of oxygen requirements for complete combustion.
  • a water mist is the most inexpensive as the mist and has a superior cooling effect. But the water mist often decomposes into oxygen and hydrogen by a contact with the flame, thereby generating an excessive amount of oxygen in the flame.
  • the flame since the flame has a stronger power than that of general thermal spraying guns as getting large, the water mist easily decomposes to generate oxygen in the flame to an excessive amount, thereby producing oxides in the amorphous film.
  • This is the reason of reducing a quantity of oxygen sprayed from the series of flame spraying ports into 50 to 80 % of oxygen requirements for complete combustion as described above (for example, this is carried out with propane gas to obtain a reducing flame) .
  • oxygen is prevented from excessively generating in the flame, thereby enabling to form on the substrate an amorphous film including no (or less) oxides generated by reaction of the flame and the material.
  • an oxide originally existing in the material is also reduced.
  • the quantity of oxygen sprayed from the series of flame spraying ports is appropriately determined in the range from 50 to 80 % depending on the amount of sprayed water mist, the flame temperature or the like.
  • the inert gas and the mist are able to be sprayed so as to cool the flame including the particulate material at a rate of 400,000 to 1,000,000 °C/s.
  • the series of particulate material spraying ports is structured by successively disposed particulate material spraying ports, which are symmetrical about a virtual plane located on a center of the spraying machine (that is, a center of the series of particulate material spraying ports) at right angles to the "straight line"; and the particulate material is fed to the particulate material spraying ports from a plurality of supply pipes through branched passages, the supply pipes being capable of adjusting each of the particulate material supply and the carriage gas flow rate (in each supply pipe, it is possible to adjust the supply and the gas flow rate respectively), the branched passages being symmetrically formed about the virtual plane and having an equal passage length from (a lower end of) the supply pipes to each of the particulate material spraying ports.
  • the particulate material has to be homogeneously fed and sprayed without any deflection and variation of a sprayed amount of the particulate material at every part in the cross section of the flame.
  • the particulate material spraying ports are symmetrically disposed about the center part of the spraying machine;
  • the particulate material supplying passages to each particulate material spraying port are branched passages symmetrically formed about the center part and having an equal length; and
  • the particulate material is supplied from the supply pipes which are capable of adjusting each of particle supply and carriage gas flow rate, to the spraying ports through the supplying passages.
  • Such a structure enables to symmetrically spray the particulate material to the oblong flame without deflecting to either side (either of right and left) of the longitudinal direction of the flame, and further enables to adjust the material supply (i.e. spray amount) through each of the supply pipes. Therefore, homogeneous spraying of the particulate material is achieved at every part in the cross section of the flame.
  • each spraying port can have a different size and the branched passage can have a partially decreased inner diameter.
  • a device is outlined in Fig. 2 , for example.
  • the series of mist spraying ports is provided as a slit aperture extending along the straight line (i.e., the straight line along which the series of particulate material spraying ports and the series of flame spraying ports are disposed).
  • the series of mist spraying ports can also be a plurality of mist spraying ports successively disposed like the series of particulate material spraying ports.
  • the series of mist spraying ports are provided as a slit aperture, the mist has a less chance to strike against an inside wall of the spraying port. Therefore, advantageously the sprayed mist tends to remain microscopic in size, and substantially comes in contact with the flame in a larger area, thereby cooling the flame more efficiently.
  • the device of the invention has a skirt provided around and extending to a forward position of all of the series of particulate material spraying ports, the series of flame spraying ports, and the series of inert gas spraying ports, which can be removable.
  • a formed film could have a narrow width (width narrowing) and a large thickness deviation (see Fig. 10 (a) ). But in the case the device has a skirt as described above, the material, the flame and the inert gas come in contact with air in a smaller area, thereby restraining film width narrowing and increase of film thickness deviation (see Fig. 10 (b) ). This is advantageous for forming a wide and homogeneous amorphous film.
  • film width narrowing and increase of film thickness deviation may vary depending on an amount of combustion gas to be used in the device, a width of a film to be formed, and the like. Therefore, it is desirable that the skirt is attachable and detachable according to a condition of film formation.
  • the device of the invention can have a structure such that the flame including the particulate material has a cross section of 150 mm or more in longitudinal length (about 300 mm, for example, while the lateral length of the cross section is about 30 mm, for example), and the series of inert gas spraying ports and the series of mist spraying ports each formed along the straight line are also 150 mm or more in length (about 300mm, for example; also in length between both ends of a plurality of spraying ports, when the ports are tightly and successively placed).
  • the present invention is remarkably significant.
  • a method for forming an amorphous film according to the invention is characterized by utilizing the device for forming an amorphous film to form an amorphous film on a surface of the substrate.
  • the angle of the series of mist spraying ports and the spray pressure of each of the inert gas and the mist is changed depending on chemical components of the particulate material (consequently, of an amorphous film to be formed).
  • amorphous film of various alloys including a metal with a high melting point and a narrow temperature range of supercooling, and metal glass.
  • Fig. 1 shows a device for forming amorphous film 1 according to the invention.
  • the device 1 is capable of spraying a flame a about 300 mm in width to achieve an industrial formation of a large-area amorphous film having a corresponding width.
  • the device 1 sprays the flame a including a particulate material to a substrate (not illustrated; placed a downward position in Fig. 1(a) and transferred) with a spraying machine 2, melts the particulate material with the flame a, and cools the particulate material and the flame before they reach the substrate, thereby forming a non-crystalline film.
  • the device 1 is structured as follows.
  • the spraying machine 2 has a front side provided with a series of particulate material spraying ports 11 and a series of flame spraying ports 12, in both series a plurality of ports being disposed at small intervals along a common straight line extending to the longitudinal direction of the spraying machine 2, such that the flame a including the particulate material has an oblong cross section of about 300 mm in longitudinal direction.
  • inert gas (nitrogen gas) spraying ports 13 is provided on both sides across all of the particulate material spraying ports 11 and the flame spraying ports 12, a plurality of ports 13 being also disposed at small intervals along the straight line, for rectification and cooling of the flame a including the particulate material.
  • spraying nozzles 3 of mist (water mist) for cooling of the flame are disposed on both sides across the spraying machine 2 including the particulate material spraying ports 11, the flame spraying ports 12 and the inert gas spraying ports 13, spraying nozzles 3 of mist (water mist) for cooling of the flame are disposed.
  • the spraying nozzles 3 have a downwardly directed mist spraying port 14.
  • the spraying port 14 is a slit which is continuously open along the straight line.
  • the mist spraying nozzles 3 are provided on the spraying machine 2 via a support member 3a connected to the spraying machine 2.
  • the spraying nozzles 3 are provided on the support member 3a at an inward inclined angle, such that a sprayed mist from either sides of the spraying machine 2 approaches the flame a to cross each other at a forward position of the flame a, and the angle is able to be changed.
  • the inert gas spraying ports 13 are also set at an inward inclined angle, such that the sprayed inert gas b approaches the flame a.
  • the mist c is sprayed at a larger angle than the inert gas b so as to enter into the flame a.
  • the reference numeral 21 in Fig. 1 indicates a supply pipe (three in total) for supplying the particulate material together with carriage gas (nitrogen gas, and the like) .
  • the particulate material is fed from the supply pipes 21, disposed through branched passages 26 formed in the spraying machine 2, and sprayed from each material spraying port 11.
  • Each of the reference numerals 22 and 23 indicates supply pipes for oxygen and propane gas as fuel for the flame a respectively.
  • the reference numeral 24 indicates a supply pipe for the inert gas b for rectification and cooling of the flame (a supply pipe for the mist is not illustrated) .
  • Each supply per hour through the supply pipes is able to be changed, and each of the inert gas spray pressure and the mist spray pressure is able to be changed.
  • the device 1 enables to appropriately adjust the cooling rate of the flame a.
  • the adjustment is conducted depending on chemical components of the alloy (that is, chemical components of the particulate material) to be sprayed and the like: when spraying metallic glass or the like, slower cooling rate is applied; and when spraying a metal having a high melting point and a narrow temperature range of supercooling, the cooling rate is raised to about 400,000 to 1,000,000 °C/s.
  • Forming an amorphous film on a substrate with the device 1 is conducted by, for example, feeding a belt-like thin substrate to a fixed, horizontal direction and spraying to the surface of the substrate with the device 1 spaced a few hundred mm above the substrate.
  • the width (or longitudinal) direction of the device 1 is set at right angles to the feeding direction of the substrate, the device 1 is able to efficiently form a large-area amorphous film of about 300 mm in width.
  • a schematic diagram in Fig. 2 shows the particulate material supply pipes 21 and the branched passages 26 connected thereto in the device 1, regarding one of the three supply pipes.
  • the graph shows a weight of the particulate material recovered at each particulate material spraying port, when the particulate material and carriage gas are fed from upstream.
  • the supply pipes from upstream to the spraying ports have a structure such that the spraying ports are symmetrically disposed on both sides across the center part of the spraying machine, and that the particulate material supplying passages to the spraying ports are the branched passages having an equal length and symmetrically formed on both sides across the center part.
  • the particulate material is symmetrically sprayed without deflecting to one side in the longitudinal direction (that is, the right side or the left side).
  • a treatment to decrease the inner diameter of the branched passages at the part a and the part b in the schematic diagram are adopted.
  • the result of the treatment is shown in the graph as "after treatment", which shows that a variation of spraying amount is eliminated.
  • Fig. 3 shows a result of temperature measurement of the flame sprayed by the device of the invention.
  • Each photograph of Fig. 3 shows a sprayed flame, and in test 2 and test 3, the mist (water mist for cooling the flame) is sprayed together with the flame.
  • the horizontal axis of the graph shows the sprayed distance from the front side of the spraying machine.
  • the flame temperature is measured at sprayed distances of 750 mm in test 1, 150 mm, 250 mm and 350 mm in test 2, and 350 mm and 450 mm in test 3 for comparison.
  • the graph shows a temperature distribution of the sprayed gas based on the temperature measurements.
  • the sprayed gas temperature exceeded 1,200 °C at the sprayed distances of 750 mm in test 1, 150 mm in test 2, and 350 mm in test 3.
  • the sprayed gas was cooled down to 100 °C as a result of cooling.
  • the sprayed length in which the temperature declined from 1,200 to 100 °C, was 100 mm in test 3. Because the gas was sprayed at the rate from 30 to 100 m/s, it is found that the cooling rate of the sprayed gas was 300,000 to 1,000,000 °C/s in this case.
  • Fig. 4 shows a distribution of the flame temperature between the front side of the spraying machine and the spray object.
  • the both graphs show a comparison of temperatures at the sprayed distances from the front side of the spraying machine of 300 mm, 350 mm, 400 mm, 450 mm, 500 mm, 550 mm and 600 mm.
  • Condition for spraying was changed from 50 Nm 3 /h of oxygen flow to 68 Nm 3 /h of oxygen flow.
  • Both graphs show a temperature distribution of the sprayed gas on a straight line parallel to the front side of the spraying machine.
  • the temperature near the center was about 1,000 °C at the sprayed distance of 300 mm
  • the temperature at the center was as high as the spray object melts (1,200 °C or more) at the sprayed distance of 350 mm, and was about 700 °C at the sprayed distance of 400 mm.
  • the graphs clearly show that the temperature of the sprayed gas gradually declines depending on the distance.
  • Fig. 5 shows a temperature distribution of the flame between the front side of the spraying machine and the spray obj ect, and an appearance photograph of the flame.
  • the sprayed distance of 0 mm indicates the front side of the spraying machine.
  • the graph shows a comparison at the sprayed distances from the front side of 550 mm, 600 mm, 650 mm, 700 mm, 750 mm and 800 mm.
  • the graph shows the temperature distribution of the sprayed gas on a straight line parallel to the front side of the spraying machine. It is found that at the sprayed distance of 550 mm, the temperature distribution is in a range from 550 to 600 °C, almost homogeneous, however, as the distance becomes larger, the sprayed gas temperature becomes lower and the temperature range becomes larger.
  • Fig. 6 shows a temperature distribution of the flame at the sprayed distance of 500 mm, when the inert gas (for rectification and cooling of the flame) is nitrogen gas. Under a fixed spray condition, the spray pressure of the inert gas was changed for comparison. As a result of changing the spray pressure of the inert gas, the flow rate was 360 Nm 3 /h and 180 Nm 3 /h.
  • the graph shows a temperature distribution of the sprayed gas on a straight line parallel to the front side of the spraying machine. It is found that the change of the inert gas spray pressure adjusted the cooling strength to have an effect on the sprayed gas temperature distribution by 50 to 100 °C in this case.
  • Fig. 7 shows a temperature distribution of the spray object at the sprayed distance of 400 mm, when the mist (for cooling the flame) is water mist.
  • the spray pressure of water mist was changed for comparison.
  • the spray object was a surface of a thin plate substrate, and the particulate material was 80Ni-20Cr.
  • the upstream water mist flow rate alone was changed to 4 l/m, 6 l/m and 8 l/m, or the downstream water mist flow rate alone was changed to 8 l/m, 10 l/m and 12 l/m.
  • Both graphs show a temperature at a part where the sprayed gas hit on the thin plate substrate. It is found that the change of the water mist spray pressure adjusted the cooling strength to have an effect on the temperature of the thin plate substrate by 30 to 60 °C to the maximum for every 2 l/m.
  • upstream and downstream are defined to be upstream side or downstream side along the feeding direction of the substrate as the spray object in the device of the invention (the substrate transferred relative to the device of the invention).
  • a rapid quenching transition control spraying machine (the device for forming amorphous film shown in Fig. 1 ) is used to product an amorphous alloy thin plate of 300 ⁇ m in thickness and 300 mm in width.
  • the production test was conducted by a rapid quenching transition control spraying machine provided on a test rolling mill.
  • a test condition of the rapid quenching transition control spraying machine is shown in Table 1.
  • the amorphous alloy thin plate was produced by heating the surface of the thin plate substrate to 400 °C in temperature before spraying an amorphous alloy, melting 64.5Ni-10Cr-7.5Mo-18B powder, spraying from the rapid quenching transition control spraying machine to form an amorphous alloy film, keeping the film in a temperature range of plastic flow (300 to 520 °C), while removing an inner hole and rolling to flatten the surface of the film, and then peeling off the film from the substrate.
  • the appearance of the amorphous alloy thin plate obtained by the production test is shown in Fig. 8 .
  • the obtained amorphous alloy thin plate was a successive belt of 400 ⁇ m in thickness, 300 mm in width and 4,000 mm in length.
  • the cross section of thus obtained amorphous alloy thin plate and the X-ray diffraction profile result are shown in Fig. 9 .
  • the spraying machine 2 is desirable to have a front part provided with a skirt having a rectangular, hollow cross section and placed around, extending forward all of the flame spraying ports 12 and the inert gas spraying ports 13, which is indicated by the referring numeral 6 in Fig. 10(b) .
  • the frame a When the skirt 6 is provided on the front part of the spraying machine 2 so as to surround just outside the flame a and the inert gas b, the frame a is allowed to come in contact with air in a smaller area, thereby restraining the formed film from width narrowing and increase of a film thickness deviation (see Table 2), in comparison to the case without a skirt 6 ( Fig. 10(a) ).

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Coating By Spraying Or Casting (AREA)
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Claims (11)

  1. Vorrichtung zur Bildung eines amorphen Films (1), die dazu ausgelegt ist, mit einer Sprühmaschine (2) eine Flamme (a), die einen partikulären Stoff enthält, in Richtung eines Substrats zu sprühen, den partikulären Stoff mit der Flamme (a) zu schmelzen und den partikulären Stoff und die Flamme (a) zu kühlen, bevor der partikuläre Stoff und die Flamme (a) das Substrat erreichen, wobei
    die Sprühmaschine (2) eine Vorderseite hat, die mit einer Reihe von partikulären Stoff sprühenden Öffnungen (11) und einer Reihe von flammsprühenden Öffnungen (12) versehen ist, die jeweils derart entlang einer Geraden platziert sind, dass die Flamme (a), die den partikulären Stoff enthält, einen länglichen Querschnitt hat; entlang der Geraden auf beiden Seiten über die Reihe von partikulären Stoff sprühenden Öffnungen (11) und die Reihe von flammsprühenden Öffnungen (12) hinweg eine Reihe von Inertgas sprühenden Öffnungen (13) eines Inertgases (b) zur Rektifizierung und zum Kühlen der Flamme (a) platziert ist; und entlang der Geraden auf beiden Seiten über die Reihe von partikulären Stoff sprühenden Öffnungen (11), die Reihe von flammsprühenden Öffnungen (12) und die Reihe von Inertgas sprühenden Öffnungen (13) hinweg eine Reihe von Nebel sprühenden Öffnungen (14) eines Nebels (c) zum Kühlen der Flamme (a) platziert ist.
  2. Vorrichtung zur Bildung eines amorphen Films (1) nach Anspruch 1, wobei
    die Reihe von partikulären Stoff sprühenden Öffnungen (11) durch hintereinander angeordnete, partikulären Stoff sprühende Öffnungen (11) aufgebaut ist, die um eine gedachte Ebene herum, die sich im rechten Winkel zur Geraden auf einer Mitte der Sprühmaschine (2) befindet, symmetrisch sind; und
    der partikuläre Stoff den partikulären Stoff sprühenden Öffnungen (11) von einer Vielzahl von Zufuhrrohren (21) aus durch Zweigdurchlässe (26) hindurch zugeführt wird, wobei die Zufuhrrohre (21) dazu imstande sind, jeweils die Zufuhr partikulären Stoffs und den Trägergasdurchsatz einzustellen, und die Zweigdurchlässe (26) um die gedachte Ebene herum symmetrisch ausgebildet sind und von den Zufuhrrohren (21) aus zu jeder der partikulären Stoff sprühenden Öffnungen (11) eine gleiche Durchgangslänge haben.
  3. Vorrichtung zur Bildung eines amorphen Films (1) nach Anspruch 1 oder 2, wobei
    die Reihe von Nebel sprühenden Öffnungen (14) in einem derartigen Winkel eingestellt ist, dass sich der Flamme (a) ein Sprühnebel (c) nähert; und
    der Winkel geändert werden kann.
  4. Vorrichtung zur Bildung eines amorphen Films (1) nach Anspruch 3, die es erlaubt, jeweils einen Sprühdruck des Inertgases (b) und einen Sprühdruck des Nebels (c) zu ändern.
  5. Vorrichtung zur Bildung eines amorphen Films (1) nach einem der Ansprüche 1 bis 4, wobei die Reihe von Nebel sprühenden Öffnungen (14) als eine Spaltöffnung vorgesehen ist, die sich entlang der Geraden erstreckt.
  6. Vorrichtung zur Bildung eines amorphen Films (1) nach einem der Ansprüche 1 bis 5, wobei die Vorrichtung eine Einfassung (6) hat, die um die Reihe von partikulären Stoff sprühenden Öffnungen (11), die Reihe von flammsprühenden Öffnungen (12) und die Reihe von Inertgas sprühenden Öffnungen (13) herum vorgesehen ist und sich zu einer Vorwärtsposition aller dieser Reihen erstreckt.
  7. Vorrichtung zur Bildung eines amorphen Films (1) nach einem der Ansprüche 1 bis 6, wobei die Flamme (a), die den partikulären Stoff enthält, in Längsrichtung einen Querschnitt von 150 mm oder mehr hat und die Reihe von Inertgas sprühenden Öffnungen (13) und die Reihe von Nebel sprühenden Öffnungen (14), die jeweils entlang der Geraden ausgebildet sind, auch 150 mm oder mehr lang sind.
  8. Verfahren zur Bildung eines amorphen Films, gekennzeichnet durch Nutzung der Vorrichtung zur Bildung eines amorphen Films (1) gemäß einem der Ansprüche 1 bis 7, um auf einer Oberfläche des Substrats einen amorphen Film zu bilden.
  9. Verfahren zur Bildung eines amorphen Films nach Anspruch 8, wobei der Winkel der Reihe von Nebelsprühöffnungen (14) und der Sprühdruck von jeweils dem Inertgas (b) und dem Nebel (c) abhängig von chemischen Bestandteilen des partikulären Stoffs geändert werden.
  10. Verfahren zur Bildung eines amorphen Films nach Anspruch 8 oder 9, wobei
    der Nebel (c) ein Wassernebel ist; und
    wenn der Nebel (c) gesprüht wird, eine Sauerstoffmenge, die von der Reihe von flammsprühenden Öffnungen (12) versprüht wird, 50 bis 80 % des Sauerstoffbedarfs für die vollständige Verbrennung beträgt.
  11. Verfahren zur Bildung eines amorphen Films nach einem der Ansprüche 8 bis 10, wobei das Inertgas (b) und der Nebel (c) so gesprüht werden, dass sie die Flamme (a), die den partikulären Stoff enthält, mit einer Geschwindigkeit von 400.000 bis 1.000.000 °C/s abkühlen.
EP13735785.1A 2012-01-13 2013-01-10 Vorrichtung zur bildung eines amorphen films und verfahren zu dessen bildung Active EP2803752B1 (de)

Applications Claiming Priority (2)

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JP2012005700 2012-01-13
PCT/JP2013/050331 WO2013105613A1 (ja) 2012-01-13 2013-01-10 アモルファス皮膜の形成装置および形成方法

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JP6367567B2 (ja) * 2014-01-31 2018-08-01 吉川工業株式会社 耐食性溶射皮膜、その形成方法およびその形成用溶射装置
WO2016181939A1 (ja) * 2015-05-11 2016-11-17 株式会社中山アモルファス 高速フレーム溶射装置
CN108333293B (zh) * 2018-05-17 2024-03-29 东北大学 利用细水雾抑制地下狭长空间火灾轰燃的试验装置及方法
JP7224254B2 (ja) * 2019-07-17 2023-02-17 東京エレクトロン株式会社 基板処理装置、情報処理装置、及び基板処理方法

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HUE041637T2 (hu) 2019-05-28
EP2803752A1 (de) 2014-11-19
US10773267B2 (en) 2020-09-15
EP2803752A4 (de) 2016-04-20
WO2013105613A1 (ja) 2013-07-18
CN104040015B (zh) 2016-10-19
US20140335283A1 (en) 2014-11-13
CN104040015A (zh) 2014-09-10
JPWO2013105613A1 (ja) 2015-05-11
JP6014606B2 (ja) 2016-10-25

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